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Start work on image support for new diff kitten

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Kovid Goyal
2023-03-23 23:01:08 +05:30
parent 18445e20ff
commit 404a775f4b
2 changed files with 135 additions and 13 deletions
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15
tools/cmd/icat/native.go
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@@ -136,18 +136,7 @@ func calc_min_gap(gaps []int) int {
}
func (frame *image_frame) set_disposal(anchor_frame int, disposal byte) int {
if frame.number > 1 {
switch disposal {
case gif.DisposalNone:
frame.compose_onto = frame.number - 1
anchor_frame = frame.number
case gif.DisposalBackground:
// see https://github.com/golang/go/issues/20694
anchor_frame = frame.number
case gif.DisposalPrevious:
frame.compose_onto = anchor_frame
}
}
anchor_frame, frame.compose_onto = images.SetGIFFrameDisposal(frame.number, anchor_frame, disposal)
return anchor_frame
}
@@ -159,7 +148,7 @@ func (frame *image_frame) set_delay(gap, min_gap int) {
}
func add_gif_frames(ctx *images.Context, imgd *image_data, gf *gif.GIF) error {
min_gap := calc_min_gap(gf.Delay)
min_gap := images.CalcMinimumGIFGap(gf.Delay)
scale_image(imgd)
anchor_frame := 1
for i, paletted_img := range gf.Image {